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A Random Sample of 20 Female Executives from Companies with Assets

Question 22

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A random sample of 20 female executives from companies with assets over $1 million was selected and asked for their annual income and level of education. The ANOVA comparing the average income among three levels of education rejected the null hypothesis. The mean square error (MSE) was 250. The following table summarized the results: A random sample of 20 female executives from companies with assets over $1 million was selected and asked for their annual income and level of education. The ANOVA comparing the average income among three levels of education rejected the null hypothesis. The mean square error (MSE) was 250. The following table summarized the results: To compare the mean annual incomes of female executives with an undergraduate degree and female executives with a high school or less education, compute the 95% confidence interval. To compare the mean annual incomes of female executives with an undergraduate degree and female executives with a high school or less education, compute the 95% confidence interval.

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[21.46, 64.54]
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